Cap-spinning frame



J. H. JONES.

CAP SPINNING FRAME.

APPLICATION FILED'IUN: z. 1921.

JOSEPH H. JONES, OF WINTI-ROP, IMASSAGHSETTS, ASSIGNOR F ONE-HALF TO ROBERT BURGESS, 0F NEWTON CENTER, LVLSSACHSETTS.

CAPeSPINNINC-r FRAME.

p Application filed June 7,

To all fui/710m 2'25 may concern.'

Be it known that l, JosnrH H. JoNns, a citizen of the United States, residing at l/Vinthrop, in the county of Suffolk, State of lvlassachusetts, have invented a certain new and useful improvement in Cap-Spinning iframes, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to cap-spinning devices of the class employing a live cap, i. e., a cap which is revolved in unison with the spinning element (spindle, bobb'in, or quill) with which it cooperates. More particularly, it relates to devices which are so organized that the cap is revolved through frictional engagement between the same and the blade or barrel of the coacting spinning element.

rEhe invention comprises an improvement in the construction of a frictionally-driven live cap which causes the cap to start revolving promptly when the coacting spinning element (spindle, or bobbin or quill) is started up from a state of rest. lt comprises, further, improvements in the material of which the mounting or support for the wheel or so-called pivot cooperating with a cap is composed, and in the construction of such support.

The drawings show illustrative embodiments of the features of the invention, which also are preferred embodiment thereof.

Fig. l of the drawings is a view of certain of its parts of a spinning frame in which the invention is incorporated, the rails being shown in cross-section.

Fig. 2 is a view showing a cap, its associated wheel or pivot, and the support for the latter, in vertical section, and partly showing a spindle and a bobbin or quill and a yarn-load thereon in elevation.

Referring first to the general assemblage shown in Fig. l, which chiefly is typical of the associations of the features of the invention in practice,-

fit l is a portion of a thread-board having hinged thereto at 2 a block 3 carrying the guide (so-called pig-tail) l for the twisting yarn between the front rolls (not shown) and the cap, spindle, and bobbin or quill. At 5 is a spindle-rail having mounted thereon in usual manner a bearing-support G for a spinning-spindle 7, in this instance of sleeve- Patented May i6, i922.

1921. Serial No. 475,632.

whirl type, driven by means of aband 8 passing around the whirl 7a of the said spindle. At 9 is a bobbin'or quill mounted upon the spindle-blade, and at l0 is a revolving cap applied to the barrel or blade of the bobbin or quill 9, and surrounding portions of the latter and the yarn-load m thereon. At il is a cap-controlling wheel or pivot, it coacting with the cap l0 in the manner eX- plained presently hereinafter; at 12 is a mounting or support for said wheel or whirl l1; and at 13A is a vertically traversing rail supporting the' said mounting or support 12.

The cap has a central hole through its head to receive the barrel or blade of the spinning element (spindle, bobbin, or quill) with which the cap is associated in operation, in the illustrated instance that of the bobbin or quill 9. Such hole is so proportioned that the cap has a close but easy sliding lit upon the said barrel or blade. The said easy sliding fit permits the cap to gravitate downward until it is supported vertically, through engagement with the wheel or pivot ll, and also permits the cap to be traversed up and down upon the said barrel or blade by the movements' of the traverse rail, for the distribution of the twisted yarn upon such barrel or blade in being wound thereupon. The said vertical support of the cap by means of the wheel or pivot 11 is provided for by forming the cap with an eXterior flare, the small diameter of which is below and the large diameter above, so that the larger portion of the conical cap overhangs the periphery of the wheel or pivotand rests thereagainst. The capis caused to revolve in the same direction with the spinning element 9 through the light frictional contact between the periphery of the barrel or blade of the latter andthe surface around thecentral bore in the head of the cap. An effect of the engagement of the conical periphery of the cap with the periphery of the wheel or pivot is tendency to press the cap bodily away from the wheel or pivot and to tilt the cap slightly in a vertical plane, a result of which is a somewhat close engagement of the cap with the barrel or blade of the spinning element 9, this 0perating to produce rotation of the cap in the same direction with such element.

Usually, in practice, ll provide the central opening of the head of the cap with a bushing 14, especially when the cap is made of plastic material (such as bakelite) or metal not well adapted to serve as a bearing.

The wheel or pivot 11 has applied to its periphery for contact with the periphery of the cap a ring 11a of frictional material (usually non-metallic) to cause rotation of the wheel or pivot in substantial unison with the cap. The wheel or pivot is of inverted cupshape, and fits over the upper end of the chambered cylindrical portion 12L of the mounting or support. It has a downwardlyextending pintle 11b which fits within a bolster-bearing l5 within the chamber of the mounting, or support, and is stepped upon a ball-bearing 15 at the bottom of the bore of the said bolster-bearing. At 16 is a peripherally-threaded cap that screws down into the top part of the chambered portion of the mounting or support, it having a central hole through which the pintle 11b extends. A split ring 17 surrounding the pintle beneath the ldisk of the cap, and occupying an annular groove formed in the pintle, prevents acci-dental lifting of the, wheel or pivot away from the mounting or support.

Referring now to the features o'f the inventionr- The first thereof consists in making the bore or opening at the center of the head of the cap which receives the blade or barrel of the spinning element with which the cap is associated in use downwardly flaring so that such bore is conical, namely a little larger in diameter in the lower portion thereof than in the upper portion. i/Vhen the cap is bushed, as in the case of that shown in the drawings, the bore of the bushing is thus flared. 1n practice, I have attained successful results with bobbins or quills having barrels or blades measuring .6 (six tenths) of an inch in diameter, and bushings having bores measuring .604 of an inch in diameter in the upper portions thereof and .614 of an inch in the lower portions thereof. This conical shape of the internal bore permits the cap, as it rests against the wheel or pivot when the spinning-frame is not running, to cant or tip definitely on the barrel or blade of the bobbin or quill, or spindle, suiciently 'to clutch (virtually) the cap and bobbin or quill, or spindle, together, so that the cap will begin to rotate as soon as the spindle or spindle and bobbin or quill begin to rotate. This ensures successful operation of the spinning devices.

In accordance with another feature of the invention I make the mounting or support 12 of plastic material, molded to shape,A with a base 1.2b to rest upon the top surface of rail 13, a boss 12cat the under side of said base to. enter a hole in such rail concentric with the spindle and bobbin or quill thereon, and an upstanding chambered cylindrical portion 12a, containing the bearings for the pintle 11b of the wheel or pivot 11. 1 have successfully employed bakelite. For the protection of the boss 12, I surround it with a metal ring 12, Fig. 2, with the exterior of which engages the inner end of the screw 12e, Fig. 1, that fastens the mounting or support in place in connection with rail 13. The mouth-end of the chambered cylindrical portion 12C has secured therein a metal ring 12f', Fig. 2, that is internally threaded for the engagement ofthe peripheral thread of the cap 16 therewith. The metal ring is stronger, less liable to breakage of its screwthread, and more resistant to wear, than is usually the case with plastic material.

What is claimed as the invention is 1. In cap-spinning devices, in combination, a revolving spinning element, a capcontrolling wheel or pivot, and a live cap fitted by means of a central hole to the blade or barrel of the spinning element and controlled by peripheral contact with the wheel or pivot, with the said central bore or opening made downwardly fiaring so as to permit definite canting or tipping of the cap relative to the said blade or barrel, thereby securing better driving engagement of the cap with the spinning element.

2. In cap-spinning devices, in combination, a revolving spinning element, a capcontrolling wheel or pivot, and a live cap controlled by peripheral contact with the wheel or pivot and having a central bushing which substantially fits the blade or barrel of the spinning element, with the bore or opening of the bushing made downwardly flaring so as to permit definite canting or tipping of the cap relative to the said blade or barrel and thereby secure better driving engagement of the cap with the spinning element.

8. .ln cap-spinning devices, a chambered pivot-support of molded plastic material containing within its chamber a bearing for a pivot-pintle.

el. 1n cap-spinning devices, a pivot-support of molded plastic material having a downwardly projecting boss adapted to enter a 'socket in a supporting-raul, with said boss armored to prevent injury and wear.

i'n cap-spinning devices, in combination, a so-called pivot having' a pintle, a pivot-support of molded plastic material, formed with a chamber containing one or more bearings for the pivot-pintle, a screwthreaded bushing applied to the chamberwall, and a cap fitting around the pivotpintle and screwing into the said bushing to close the chamber.

1n testimony whereof 1 affix my signature in presence of Vtwo witnesses.

JOSEPH H. JONES. iVitnesses Cries. F. RANDALL, ELLEN' O. SPRING. 

